Using the Law of Sines (sina/A=sinb/B=sincC for any triangle)
sinc/28=sin90/53 (sin90=1) multiply both sides by 28
sinc=28/53 take the inverse of sin (arcsin) of both sides
c=arcsin(28/53)°
c≈31.89° (to nearest hundredth of a degree)
So it is obvious that they rounded to nearest tenth of a degree
c≈31.9°
Answer:
For the expression they are adding by 4.
Step-by-step explanation:
2+4=6, 6+4=10, 10+4=14, 14+4=18, 18+4=22, and it goes on and on.
Answer:
see explanation
Step-by-step explanation:
Using the trigonometric identities
1 + tan²A = sec²A , secA = 
, cosecA = 
, cotA = 
, tanA = 
Consider the left side
= 
= 
= 
= 
× sin²A
=
= tanA = right side , thus proven
No intervals are showing, but here is how to solve this equation.
0.35x - 4.8 < 5.2 - 0.9x
Add 4.8 to both sides
0.35x < 10 - 0.9x
add 0.9x to both sides
1.25x < 10
divide both sides by 1.25
x < 8
Interval Notation:
If we graphed this on a number line, x goes toward negative infinity.
Answer: (-∞, 8)
Hope this helps! :)
Answer is
Isolate the variable by dividing each side that don’t contain a variable
X = -2/3
Decimal form -0.6
